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106 Troubleshooting Tools
CPU FAN FAILURE — CPU fan failure. Replace the CPU fan (see "Removing the
Processor" on page 243).
FLOPPY DISKETTE SEEK FAILURE — A cable may be loose, or the computer
configuration information may not match the hardware configuration. Check cable
connections (see "Contacting Dell" on page 269 for assistance).
DISKETTE READ FAILURE — The floppy disk may be defective or a cable may be
loose. Replace the floppy disk/check for a loose cable connection.
HARD-DISK READ FAILURE — Possible HDD failure during HDD boot test (see
"Contacting Dell" on page 269 for assistance).
KEYBOARD FAILURE — Keyboard failure or keyboard cable loose (see "Keyboard
Problems" on page 118).
NO BOOT DEVICE AVAILABLE — The system cannot detect a bootable device or
partition.
• If the floppy drive is your boot device, ensure that the cables are connected and
that a bootable floppy disk is in the drive.
• If the hard drive is your boot device, ensure that the cables are connected and
that the drive is installed properly and partitioned as a boot device.
• Enter System Setup and ensure that the boot sequence information is correct
(see "Entering System Setup" on page 81).
NO TIMER TICK INTERRUPT — A chip on the system board might be
malfunctioning or motherboard failure (see "Contacting Dell" on page 269 for
assistance).
NON-SYSTEM DISK OR DISK ERROR —Replace the floppy disk with one that
has a bootable operating system or remove the floppy disk from drive A and restart
the computer.